Socket for incandescent lamps.



TREGONING.

Patentd Apr. 13, 1909.

APPLICATION FILED JUNE 26, 190B.

SOCKET FORINOANDESOENT LAMPS.

ATTEST mg-w, W,

- cuisine snares Parana. enrich.

WILLIAM c. 'rnseomuegor CLEVELAND, orno.

SOCKET FOR IIAICANDESflENl LAMPQ.

To all whom it may concern:

Be it known that 1, WILLIAM C. Transom descent lamps, and the invention consists in.

a socket having definitely related and uniform contact surfaces which do not change or diminish in area from the making to the breaking of the circuit and which are constructed and adapted to operate, substantially as shown and described and particu larly pointed out in the claims.

In the accompanying drawin s, Figure l is a sectional elevation of the 500 ct with the contact members open. Fig. 2 is a sectional. elevation of the socket a quarter turn to the right ascompared with Fig. 1, and Fig. 3 is a sectional elevation corresponding to Fig. 2 with the shell and one of the terminal connecting parts removed-and with the contact members closed. Fig. 4 is a perspective view of the two contact members. liig. 5 is a perspective view of the rotatablev ratchet member. Fi 6 is a cross section corre sponding to line 6-6, Fig. 2 looking down, and Fig. 7 is across section. turned lihIOUgll about a sixth of a revolution on a line corresponding to 7;-'7, Fig. 3, looking down. Fig. 8 is a perspective view of one of the ter minal connections, and Fig. 9 is an enlarged sectional elevation of the socket as a whole With the closing shellremoved and the circuit open corresponding to Figs. 1 and 2. Fig. 10 is a pcrsaective view of a post or spindle on which the operating lever is mounted, and Fig. 11 is a perspective view of the spring upon said post. 12 is a )erspective view of the operating wver, and i i 13 is a side view of the socket. n the drawings as thus shown S represents the socket member or portion n'oper, the same being of conducting material and ad apted to have the lamp screwed. or turned to engaging position therein much as usual, and c is a contact extension adapted to be electrically engaged by the lamp and forming a art of the terminal connecting member 0.

he current is carried in' the outer portion of Specification of Letters Patent.

Application filed June 36, 1908. Serial No. MO M3.

Patented April 13, 1909.

the circuit through this member, which has a binding screw 2 for the wire at the side f said member.

A and B are the upper and lower insulation, disks or parts respectively, which carry me current conducting parts as usual and are rigidly unitedbut held apart relatively by the terminal connecting members C and l). The usual shell E incloses said parts and is insulated about its inside from the socket S and other parts; Saiddisks A and B may be made of porcelain, fiber or other acceptable material.

Now, having the said several arts conetructedand arranged as thus slown and described, or in equivalent form, sundry novel and original features are employed therewith and which clearly diilerentiate the invention from all the prior art known to me, and the said parts comprise the two contact members 4 and 5, the insulating rotatable ratchet member 6, controlling arm 7, the post or shaft 8, and the sprin 9 mounted The said severa parts alsov on saidpost. are oi novel construction individually. Thus, the said contact members i and 5,

through which the circuit is made and broken alternately, are peculiar and original in this, that they are stationary as to their osition in the socket and permanently fixed on the opposed insulating disks A and B at corre' sponding ends by the respective screws 10 and 12. The said parts consist of fiat thin" pieces of spring metal curved edgewise between thenends to a segment of a circle conlormmg to the curvature of the socket and are suitably fashioned at their res ective right angled fastening ends 13 am 14: res ectively to be secured by the screws 10 an 12 and to bring said members otherwise into substantially parallel planes between their contact portions. These portions com.- prise the outer half of said members between points at and y,. a.nd said members are further characterized by a mutual and correspond.- ing bend of the said outer half thereof at as in the direction of rotatable ratchet member 6 and so as to engage with said member and thereby make and break circuit as well as to hold said member with each rotation. To these ends the said arts 4 and 5 serve also as 'pawlswhich hold whatever rotation the ratchet is given in a forward direction by lever 7 and prevent reverse rotation thereof, thereby assuring successive making and reaking of the circuit and limiting the acwith, as in Fig. 3.

"contact inembersinto electrical closure on transverse rib -ortooth b and drop members and presses them together.

tion of the device to either one or the other in any single pull on the chain 16 lJY-WlllCll a person turns the current on or ofi Normally the said two contact members 4 and 5 area art or out of contact, as seen in Figs. 1,

Zan 4, and in that position hearagainst the shoulder a of the ratchet membbr at their extremities. Then when contact or closing ol' the circuit is to occur the said. ratchet member is given a quarter turn ahead by pulling on chain 16 and the two contact their otherwise fiat surfaces I between points a: and y. In this-operation the inner surface d of the ratchet next to the tooth or rib 15 engaged at the time rests the said contact Then as they ride off this surface or face they spring apart of their own accord and'lock against edge a' and the circuit is broken. It

has beenobserved that by this construction the usual Wipin orvtraveling contact is wholly avoided, an that when contact is made-it occurs uniformly and .at the same instant the entire length and width between the points x and and when contact is broken it occurs in ike manner over all said surface simultaneously. Hence there is he running or movm contact, as is common,

, and which'inevita ly brings the parts to a and said arm has a pawl or finger g adapted teeth to:

sparking relation at least, if not to burning out, where they gradually travel "to the termination of contact and snap apart. In the present construction there is no such travel of any part in respect to the other and no reduction of the contact surface, but the free ends of the contact members separate alike.

and at the same time from a to y by simply spring 211p apart and breaking the circuit unifo y over the whole of said surface at the same time. Again, the operating lever 7 has ahub h loosely mounted on poster shaft 8 soas'to rotate alone thereon within limits,

to, e age successively on the said teeth I) and s oulders acnratchet inember 6 and thereby rotate said member within ,the

vlimits provided; These limits-are defined by'the s ace between studs m and n on the inner 9&9 of insulating disk B, and said lever-rests normally back against stud m and is moved to contact with stud a as its definite stop when the lever is operated to make or break; circuit. It occurs, therefore, that pawl 9 always engages one or the other of the ouldera a when at rest, so as to be in. readiness to move-the ratchet member forward when an operation is to take place,

and spring 9 about the said post is engaged at one end on stud 20 on said lever and at the other end in one of the several notches e m the lateral flange on the inner end of said I post or shaft 8. By changing the spring into one or the other of said notches the tension thereof can be changed accordingly. The

action of the springis to throw the o crating lever back after alorward rotation y hand and thereby bring the lever into engagement with-the'nei'r't succeeding tooth b or shouldons a after it has carrie the ratchet member forward a quarter turn and made or broken circuit as the case may be.

The line wires are adapted to be connected at or by'the respective binding screws 2 and 3, and the circuit is completed in one case through terminal member C and in the other through terminal member I), with the contact members 4 and 5 in the latter portion of the circuit.

The'ratchet member is of a two wing or two leaf pattern, with a bob 6 having a bore free to turn on fined shaft 8 and with said wings of substantially quarter size relatively. That is, assuminglithat the said member was originally of disk shape and then quartered, the respective wi gs represent uarters that were retained, an I the recesses etween the same the spaces from which quarters were. removed; 1 v

' The overlap mg and contact portions of members 4 ans 51 are referred to herein as coming together and separating laterally, in contradistinction to'the common 'way of separating by a relative sliding movement which changes the contact area, These contact members have no sliding movement but are stationary, and are pressed together by ratchet 6 and separate by their own spring action, and particularly the lower member,

which springs'away, from the upper member the instant they drop off the ratchet surface behind shoe 1%? a. v

As usual", s 11 E is designed to be a separate and rem vable part of the socket to facilitate making elebtrical connections. But difficulty w id be experienced in removing the shell 6% eyelet moun upon the shell. Itherefore 1l5' in 16 passed through an f rovide a separate eyelet member -2l- T 8d to seat within grobvcs or recesses in-thc up or and lower insulatini an B,'res iectively and w is ri idl lield between said parts when as sembler notched inward from its upperedge at 19,

and secured together. Shell Eis aving top and bottom flanges els -"adapt i disks orarts A' ercby sair eyelet Fig. l3, to permit sleeving of'tlie parts one over tlieother and obviously without removin chain 16 f om eyelet '21. Again,

the pu 1 upon the chal is distributed from the eyelet to the solid uliiting body parts members together laterally without changing fasten by screws to either or both of the body prising a rotatable insulating member mountoperate said ratchet member.

lever sleeved on said post and adapted to Aand B and not '11 on the light shell E, and if necessary, the p ate from which eyelet 21 is struck up,. may be otherwise formed to parts A and B.

What I claim is 1. A socket for incandescent lamps comprising two oppositely disposed insulatingdisks each having a contact member permanently fixed thereto on their opposed faces at one end andoverlapping in their contact portions, and means to presssaid.

their relative positions in the-socket comcd tacialiy upon one of said .disks opposite said contact members.

e 2. A socket for incandescent lamps having opposed insulating disks and substantially flat sided contact'members. mounted thereon on their opposedfaces, and a rotatable ratchet member rotatably mounted on the inside face of one disk to press said members together laterally and a ratchet device to An incandescent lamp socket comprising upper and lower insulating disks and terminal connections separating the same and two substantially flat sided spring con-z tact members normally separated and separately supported on said respective disks, a rotatable ratchet of insulating material adapted to have facial contact with one of said members to close and separate said contact members alternately, a lever to rotate said ratchet and a spring arranged to throw said'ratchet back to starting position.

4. The combination of. op 'oserhnsulating disks having a contact mem er on each and separated laterally from each other, with a rotatable ratchet member facially mounted upon one disk, a central post on which said ratchet is rotatably mounted, an operating rest on said ratchet to rotate the same, and a spring on said post to restore the lever to starting position. I

5. An insulating ratchet ,inemberfor electric lamp sockets having a lcen-tral hub with a bore and a pair of segmental oppositewings spaced a art from each other, said wings each havmga square shoulder at one edge and a tooth like projection at its top at the other edge and afiat inclined top surface between.

rigidly secured connection extends,

' ing said 6. An insulating ratchet member for electric lamp sockets comprisinga central hub having opposite segmental wings separated by segmental spaces and provided each with 1 a projection at one edge and top adapted to be engaged by a pawl and'shoulderedat its other edgefor like engagement by contact members.

7. A socket for incandescent lamps comprising se arable disks of insulating'material and a switch embodied therewith and provided with a flexible connection to o crate said switch, an eyelet member rigidy secured to said disks between the same and with which said flexible connection is adapt- .ed to have running engagement, and an 1nclosing shell for said disks separable therefrom and from said eyelet member.

8. A socket for incandescent lamps comprising upper and lower insulating disks spaced apart from one another and a switch between said parts having a flexible connection to operate the same, an eye member to the insulating disks between saidparts through which said flexible and a slotted shell adapted to sleeve over the socket partsand through which said eye member is adapted toproject.

, 9. Asocket for incandescent lamps comoss and screw opening therethrough, a post and a screw to secure the same on said boss, a second insulating disk having a central opening, and terminal connections supportdisks in spaced relation opposite each other, in combination with a spring contact member mounted upon each disk, and rotatable ratchet means mounted 'upon said 0st and 'adaptedto press said contact mem ers together. v

10. A socket for lamps com rising upper and lower disks and terminal connections therefor adapted to support them in spaced relation, a contact spring mounted upon the opposed face of each disk and oppositely'disosed and out of contact with each other, an insulating ratchet member having inclined faces to bring said springs into contact, a

prising" an insulating disk having a central flanged post on the lower disk'to rotatably support said member, notches in the flange of said post, a ratchet pawl sleeved about said post, a coiled s ring adjustably engaged with said notched ange and adapted to returnlsa-id pawl and means to operate said In testimony whereof I sign'this specification in the presence of two witnesses.

v WILLIAM. C. TREGONING. VV'tnesses:

E. M. FISHER, O. D. BROWN. 

